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1. 发明申请

US20140231171A1 LEVELING LEG FOR A LADDER 有权
标题翻译：梯子的水准
公开(公告)号：US20140231171A1
公开(公告)日：2014-08-21
申请号：US13790555
申请日：2013-03-08
申请人： MATERIAL CONTROL, INC.
发明人： James F. Kerr , Nicholas J. Valore
IPC分类号： E06C7/46
CPC分类号： E06C7/46 , E06C1/39 , E06C1/397 , E06C7/181
摘要： A rolling ladder includes opposing side members between which a plurality of treads are disposed at predetermined locations to define a ladder. The ladder further includes a support structure coupled to the ladder and including a front wheel support coupled to a plurality of rolling devices. A leg assembly has a user-adjustable length leg, and is coupled to the support structure. A lock mechanism is responsive to user actuation and is configured to move the rolling devices from a rolling position to a retracted position, wherein the leg of the leg assembly contacts the floor to thereby inhibit movement of the ladder.
摘要翻译：滚动梯子包括相对的侧部构件，多个胎面在其之间设置在预定位置以限定梯子。梯子还包括联接到梯子的支撑结构，并包括联接到多个滚动装置的前轮支撑件。腿组件具有用户可调节的长度腿部，并且联接到支撑结构。锁定机构响应于用户致动并且被配置成将滚动装置从滚动位置移动到缩回位置，其中腿部组件的腿部接触地板，从而阻止梯子的移动。

2. 发明授权

US09435156B2 Dual track ladder with brake mechanism that is automatically applied to the upper tracks to hold the ladder in place during use 有权
标题翻译：具有制动机构的双轨梯，自动施加到上轨道，以在使用过程中将梯子固定到位
公开(公告)号：US09435156B2
公开(公告)日：2016-09-06
申请号：US14107218
申请日：2013-12-16
申请人： MATERIAL CONTROL, INC.
发明人： James F. Kerr
IPC分类号： E06C9/12 , E06C1/397 , E06C7/18
CPC分类号： E06C9/12 , E06C1/397 , E06C7/182 , E06C7/183
摘要： A ladder system includes an overhead track system, a ladder, a latch and a carriage. The overhead track system includes a first guide track and a second guide track. The carriage is operatively configured to move longitudinally along the first and second guide tracks and to move laterally between the first and second guide tracks. The ladder is pivotally mounted to the overhead track system. A lateral carriage brake is provided which prevents lateral movement of the ladder, and a longitudinal carriage brake is provided to prevent longitudinal movement of the ladder. The latch is operatively configured to affix the ladder to the carriage.
摘要翻译：梯子系统包括架空轨道系统，梯子，闩锁和滑架。架空轨道系统包括第一导轨和第二导轨。滑架可操作地构造成沿着第一和第二导轨纵向移动并且在第一和第二导轨之间横向移动。梯子可枢转地安装在架空轨道系统上。提供横向滑架制动器，其防止梯子的横向运动，并且设置纵向滑架制动器以防止梯子的纵向移动。闩锁可操作地构造成将梯子固定到托架上。

3. 发明授权

US09206643B2 Leveling leg for a ladder 有权
标题翻译：调整一个梯子的腿
公开(公告)号：US09206643B2
公开(公告)日：2015-12-08
申请号：US13790555
申请日：2013-03-08
申请人： MATERIAL CONTROL, INC.
发明人： James F. Kerr , Nicholas J. Valore
IPC分类号： E06C7/46 , E06C1/39 , E06C1/397 , E06C7/18
CPC分类号： E06C7/46 , E06C1/39 , E06C1/397 , E06C7/181
摘要： A rolling ladder includes opposing side members between which a plurality of treads are disposed at predetermined locations to define a ladder. The ladder further includes a support structure coupled to the ladder and including a front wheel support coupled to a plurality of rolling devices. A leg assembly has a user-adjustable length leg, allowing the user to extend or retract either leg to accommodate uneven or irregular floor surfaces. The leg length may also be adjusted to allow for wear in the material of the leg. A lock mechanism is responsive to user actuation and is configured to move the rolling devices from a rolling position to a retracted position, wherein the leg of the leg assembly contacts the floor to thereby inhibit movement of the ladder.
摘要翻译：滚动梯子包括相对的侧部构件，多个胎面在其之间设置在预定位置以限定梯子。梯子还包括联接到梯子的支撑结构，并包括联接到多个滚动装置的前轮支撑件。腿组件具有用户可调节的长度腿部，允许使用者延伸或缩回两条腿以适应不均匀或不规则的地板表面。也可以调整腿部长度以允许腿部材料的磨损。锁定机构响应于用户致动并且被配置成将滚动装置从滚动位置移动到缩回位置，其中腿部组件的腿部接触地板，从而阻止梯子的移动。

4. 发明申请

US20140097039A1 DUAL TRACK LADDER WITH BRAKE MECHANISM THAT IS AUTOMATICALLY APPLIED TO THE UPPER TRACKS TO HOLD THE LADDER IN PLACE DURING USE 有权
标题翻译：具有制动机构的双轨踏步机在自动应用于上坡轨道上以在使用期间将梯子保持在位置
公开(公告)号：US20140097039A1
公开(公告)日：2014-04-10
申请号：US14107218
申请日：2013-12-16
申请人： MATERIAL CONTROL, INC.
发明人： James F. Kerr
IPC分类号： E06C9/12 , E06C1/397
CPC分类号： E06C9/12 , E06C1/397 , E06C7/182 , E06C7/183
摘要： A ladder system includes an overhead track system, a ladder, a latch and a carriage. The overhead track system includes a first guide track and a second guide track. The carriage is operatively configured to move longitudinally along the first and second guide tracks and to move laterally between the first and second guide tracks. The ladder is pivotally mounted to the overhead track system. A lateral carriage brake is provided which prevents lateral movement of the ladder, and a longitudinal carriage brake is provided to prevent longitudinal movement of the ladder. The latch is operatively configured to affix the ladder to the carriage.
摘要翻译：梯子系统包括架空轨道系统，梯子，闩锁和滑架。架空轨道系统包括第一导轨和第二导轨。滑架可操作地构造成沿着第一和第二导轨纵向移动并且在第一和第二导轨之间横向移动。梯子可枢转地安装在架空轨道系统上。提供横向滑架制动器，其防止梯子的横向运动，并且设置纵向滑架制动器以防止梯子的纵向移动。闩锁可操作地构造成将梯子固定到托架上。

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